Long/endless AI turns in multiplayer.

In online multiplayer games, computer-controlled players eventually start taking very long turns or even "freeze," meaning they take turns indefinitely. At the same time, desynchronization is visible – for example, the host is already on Orange, while others are still on Green. If someone disconnects during a frozen turn, the remaining players' games resume and load quickly. Sometimes, loading and completing a turn without doing anything helps, but the problem returns after a few turns. Has anyone encountered these issues? Any ideas about what might be causing it? Could the AI be modified to fix this? We've already tried MegaAI and Advanced AI, and they also often cause freezes.